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(WXYZ) - Nest Labs is recalling about 440,000 of their Nest Protect: Smoke + CO Alarms because activity near the device during a fire can prevent the alarm from immediately sounding.

The detectors are made of black or white plastic and are about 5.25 inches square with rounded corners. They are also about 1.5 inches deep and feature the word "nest" on a large button on the face of the alarm.

They were sold at various online and big box retailers from November 15, 2013 to April 3, 2014 for about $130.

At issue is the product's Nest Wave feature, which allows users to temporarily silence some alerts or cancel a manual test by vigorously waving an arm near the unit.

The units come from the factory with the feature enabled. A software update will correct the problem.

The detectors in question are capable of being connected to the internet and linked to a Nest account via a wireless network.

Users who have connected their devices to the internet should use their Nest account mobile or web application to ensure that the automatic repair has been received. This is indicated by the button for the Nest Wave being set to "off" and the button itself being grayed out.

Users who have not linked their detector to a Nest account are advised to connect it immediately. It will then automatically receive the software update that contains the fix.